How can a utilitarian distinguish qualitatively higher pleasures from lesser ones, base ones, unworthy ones? Yes?

功利主义者何以将性质上更高级的快乐,与较低级，基本无价值的区分开呢，请说？

耶鲁公开课 - 公正课程节选

It is to eat the fruit of the tree of knowledge because if human beings obtain knowledge, they will be like the gods,and that is unacceptable.

食用智慧树的果实,如果人类得到智慧,将与诸神无二,这当然是不能接受的

耶鲁公开课 - 古希腊历史简介课程节选